Influence of pyrolysis temperature on characteristics and heavy metal adsorptive performance of biochar derived from municipal sewage sludge

Tan, Cheng; Zhang, Yaxin; Wang, Hong-Tao; Lu, Wenjing; Zhou, Zeyu; Zhang, Yuancheng; Ren, Lulu

doi:10.1016/j.biortech.2014.04.048

Cited by 592 publications

(188 citation statements)

References 30 publications

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“…The pH (1/10, wt/v) was measured electrochemically with a pH meter (Thermo Orion 9512, Waltham, MA, USA) according to Chen et al (2014). The total N, C, H, and S contents were measured using a CHNS-O (Eurovector EA 3000, Changsha, China).…”

Section: Biochar Characterizationmentioning

confidence: 99%

“…The physicochemical properties of biochar, such as pore diameter, size distribution, total surface area, and nutrient content, are closely related to the pyrolysis conditions and the original biomass feedstock (Chen et al 2014;Manyà et al 2014). The pyrolysis temperature causes chemical and physical changes to the feedstock, such as decreasing the H/C, O/C, and (N+O)/C ratios.…”

Section: Introductionmentioning

confidence: 99%

“…The pyrolysis temperature causes chemical and physical changes to the feedstock, such as decreasing the H/C, O/C, and (N+O)/C ratios. For example, high temperatures increase the specific surface area (Devi and Saroha 2015) but decrease the amount of biochar produced, and they cause demethylation and decarboxylation reactions that result in high amounts of carbonized and aromatic structures (Chen et al 2014;Devi and Saroha 2015).…”

Section: Introductionmentioning

confidence: 99%

“…If the pyrolysis temperature is too high, then there is an excessive amount of carbon volatilization, and low concentrations of functional groups are obtained (Chen et al 2014). The chemical composition, pH, surface charge, and thermal stability of biochar are also affected by the pyrolysis temperature, and these properties influence the degree of biochar reactivity (Downie et al 2009;Chen et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The chemical composition, pH, surface charge, and thermal stability of biochar are also affected by the pyrolysis temperature, and these properties influence the degree of biochar reactivity (Downie et al 2009;Chen et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Pyrolysis Conditions on Physicochemical Properties of Oat Hull Derived Biochar

González¹,

Romero-Hermoso²,

González³

et al. 2017

BioResources

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The effects of the pyrolysis conditions in terms of temperature (400 to 600 °C), residence time (0.5 to 3.5 h), nitrogen flux (0 to 1 L/min), and temperature increase rate (1.5 to 3 °C/min) on the physicochemical properties of biochar were studied. The physicochemical properties evaluated in the biochar were specific surface area, pore volume, average pore size, total carbon content, pH, total acidity, elemental composition, and polycyclic aromatic hydrocarbons (PAHs) content. A higher specific surface area of 108.28 m 2 /g and a mean pore size diameter of about 2.24 nm were found when the pyrolysis was conducted at 600 °C. In general, the pH and total acidity increased with the increased pyrolysis temperature. The total PAH concentration in all of the combinations studied varied from 0.16 to 8.73 μg/kg, and only phenanthrene, pyrene, and chrysene were detected. The increased temperature seemed to decrease the PAH concentration in the biochar. Nevertheless, there was no correlation found between the PAH content and the combined evaluated parameters.

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Section: Biochar Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effects of Pyrolysis Conditions on Physicochemical Properties of Oat Hull Derived Biochar

González¹,

Romero-Hermoso²,

González³

et al. 2017

BioResources

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Effects of Biochar Produced from Waste on Soil Quality

Zwart

2020

Biorefinery of Inorganics

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Valorization of Fenton sludge by pyrolysis as a green adsorbent for arsenate removal

Cho,

Kyu‐Kang,

Lee

et al. 2023

Applied Organom Chemis

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Significant quantities of Fenton sludge (FS) are produced during the treatment of industrial wastewater from the plating industry because of the removal of residual organic matter and color‐causing substances. This study proposes repurposing waste FS as a valuable resource to contribute to environmentally favorable remediation initiatives. This study focuses on producing Fenton sludge biochar (FS‐BC), which effectively removes As(V) from wastewater and offers a sustainable solution for wastewater treatment. Different FS‐BC samples were produced at various pyrolysis temperatures (300–900 °C), with FS‐BC‐900 exhibiting the greatest As(V) adsorption capacity. As(V) removal was primarily mediated by electrostatic attraction with iron oxide, and adsorption via inner‐sphere complex formation, as revealed by the XPS analysis. FS‐BC‐900 had a remarkable maximum As(V) adsorption capacity of 148.7 mg/g (initial concentration: 100–900 mg/l; reaction time: 96 h; pH 7.86), surpassing many other adsorbents reported in the literature. FS‐BC‐900 also demonstrated a high As(V) removal percentage, with 6.67 g/l of FS‐BC‐900 removing 96.8% of the As(V). Notably, the adsorption of As(V) by FS‐BC‐900 was affected by certain factors, including pH and carbonate presence. High pH and carbonate inhibited the ability of FS‐BC‐900 to adsorb As(V). This study presents a novel method for utilizing FS to combat As(V)‐contaminated water‐induced environmental contamination. This study contributes to eco‐friendly and sustainable wastewater treatment and As(V) remediation strategies by transforming waste into valuable resources.

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Influence of pyrolysis temperature on characteristics and heavy metal adsorptive performance of biochar derived from municipal sewage sludge

Cited by 592 publications

References 30 publications

Effects of Pyrolysis Conditions on Physicochemical Properties of Oat Hull Derived Biochar

Effects of Pyrolysis Conditions on Physicochemical Properties of Oat Hull Derived Biochar

Effects of Biochar Produced from Waste on Soil Quality

Valorization of Fenton sludge by pyrolysis as a green adsorbent for arsenate removal

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